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- Article 4701 of sci.physics:
- Path: dasys1!cucard!rocky8!cmcl2!nrl-cmf!ukma!tut.cis.ohio-state.edu!bloom-beacon!husc6!lotto
- From: lotto@midas.harvard.edu (Gerald I. Lotto)
- Newsgroups: sci.chem,sci.physics
- Subject: Other metals for cold fusion system
- Message-ID: <LOTTO.89Mar31101842@midas.harvard.edu>
- Date: 31 Mar 89 15:18:42 GMT
- Sender: news@husc6.harvard.edu
- Organization: Harvard Chemistry Dept., Harvard University
- Lines: 24
- Xref: dasys1 sci.chem:24 sci.physics:4701
- Posted: Fri Mar 31 10:18:42 1989
-
- I have seen many references to Ti as an alternative to Pd in the
- cold fusion system that has received some attention :-) in these
- newsgroups lately. d-block metal H affinities seem to fall into
- two broad categories:
-
- 1) Little or none - generally true of metals not mentioned in the
- following paragraph(s).
-
- 2) Ti, Zr, Hf (IVa) and V, Nb, Ta (Va) form (exothermically) hydrides
- that are pretty stable. Ti and Zr in particular form materials that
- are commonly used as reducing agents in metallurgy. These tend to be
- nonstoichiometric hydrides in a 1:~1.5 M:H ratio.
-
- Pd is unique in how labile the "hydrides" that it forms are. Copper is
- also strange - but in a different way, not particularly useful in this
- context. If other metals are to be used for this process, I would
- think that Ru or Rh would be more likely candidates than Ti from a
- chemical standpoint.
-
- More info from:
-
- F. A. Lewis, The Palladium-Hydrogen System, Acad. Press, 1967
- --
- Gerald Lotto - Harvard Chemistry Dept.
-
-
- Article 4728 of sci.physics:
- Path: dasys1!cucard!rocky8!cmcl2!nrl-cmf!ames!think!husc6!m2c!wpi!mchamp
- From: mchamp@wpi.wpi.edu (Marc J. Champagne)
- Newsgroups: sci.physics
- Subject: Palladium vs Titanium fusion claims
- Keywords: cold fusion, palladium, titanium
- Message-ID: <1626@wpi.wpi.edu>
- Date: 1 Apr 89 02:08:25 GMT
- Organization: Worcester Polytechnic Institute, Worcester, Mass.
- Lines: 103
- Posted: Fri Mar 31 21:08:25 1989
-
-
- I've recently seen several postings on USENET regarding reports of
- cold fusion occuring within titanium now, as well as palladium.
- This is basically being reported as a manifestation of the same
- property which theorists are saying allows the fusion of deuterium
- to occur in the lattice wells of palladium. I disagree. Can
- anyone confirm the following, and offer some possible explanations.
-
-
- 1) lattice structure
- -palladium has a type of cubic lattice structure at STP ; the
- lattice is reportedly saturated with palladium ions during a 10
- hour "charging time", after which fusion occurs via tunneling
- -titanium has a stable hexagonal structure below 882 C ; it's
- cubic lattic is only stable ABOVE 882 Celsius
-
- 2) hydrogen absorbtion
- -palladium is known to absorb 800-900 times its own volume in
- hydrogen
- -titanium decomposes steam at 700 C to oxidize ; it liberates
- hydrogen ; at the temperature at which it has the lattice
- structure to hold the deuterium ions, it would break down the
- heavy water and react with the oxygen, not absorb the hydrogen
-
- 3) electrical resistance
- -palladium is an extremely good conductor ; it is commonly used
- in relays and other electrical-mechanical components, since it
- compares favorably to platinum at a fraction of the cost (about
- 1/4)
- -titanium is a poor electrical conductor by comparison to copper
-
- 4) reactivity
- -palladium is one of the most (if not the most) reactive of the
- platinum group metals ; yet, it is relatively inert compared to
- other metals, having a resistance to oxidation somewhere between
- that of silver and gold
- -titanium is a VERY reactive metal ; this reactity is well known,
- since it makes it very difficult to refine and causes some
- serious brittleness tendancies under a variety of circumstances
-
- 5) superconductivity
- -I have never seen any claims that palladium has superconducting
- properties
- -titanium has been shown to have superconductive tendancies at
- extremely low temperatures, and was the center of a good deal of
- research in this area
-
-
- All of the above are facts which would tend to suggest we are NOT
- looking at a cold fusion supporting ability in these two metals
- based on their common electro-chemical properties.....they have
- very few common and significant properties. Just what is going on
- here?
-
- Looking at the theoretical explanations which have been formed
- (preliminary and unconfirmed, I admit, but nonetheless logical) to
- explain deuterium fusion in the palladium lattice structure, I
- would have to say that fusion of this type could either NOT occur
- in titanium or would be guaranteed to be FAR BELOW the break-even
- point. Perhaps fusion HAS been occuring in certain types of
- electro-chemical reactions involving deuterium for quite some time,
- but the occurances have been so isolated in time that we have not
- had any reason to sit up and take notice. Perhaps the
- palladium-platinum-deuterium electrolysis system set up in Utah has
- drawn our attention to a relatively common occurance, except that
- the fusion has occured at such a fantastic rate that it was the
- first system in which it was really NOTICED.
-
- If this is a correct assumption, than fusion on titanium probably is
- not capable of occuring above the break-even point and has
- absolutely **ZERO** commercial viability. The people out there
- trading palladium futures probably have nothing to worry about yet
- (grin). After all, palladium is the most common of the
- platinum-group metals in the earth's crust (which seem to be the
- prime fusion "environment" candidates according to the cold fusion
- theories produced so far).
-
-
- Still, it raises some interesting regulatory questions. Even if
- fusion on titanium (or perhaps some even MORE common metal) is not
- possible above the breakeven point (not commercially viable for
- power production), some person who sets up such a device has made
- himself a potent little neutron-generator. How can we possibly
- hope to prevent such a person from neutron-activating a variety of
- materials, or worse yet from intentionally/accidentally exposing
- living organisms (God forbid, people) from this device? The NRC
- has pretty tight control over nuclear material and "special"
- nuclear material. But these devices which seem to be cropping up
- involve nothing more rare than several publicly traded metals and a
- little heavy water. Even if you enact more stringent controls on
- heavy water possession, you can seperate out the deuterium from
- sea-water using a Physics 101 electrolysis setup. Junk the oxygen
- and allow the deuterium to settle below the hydrogen because of its
- mass. That's a grossly inefficient method, but you can easily get
- process seawater to have a 25-40% deuterium content by only
- slightly more advanced methods. And the Canadians routinely enrich
- the deuterium content above 98% (can't remember the exact figure)
- for their heavy-water reactors.
-
-
- Even if the readers out there would rather not touch the regulatory
- issues, I'm despirately looking for informed opionions on the
- palladium vs titanium fusion claims.
-
-
- Article 4733 of sci.physics:
- Path: dasys1!cucard!rocky8!cmcl2!rutgers!sunybcs!lanthony
- From: lanthony@sunybcs.uucp (Lawrence Anthony)
- Newsgroups: sci.physics
- Subject: Re: Palladium vs Titanium fusion claims
- Summary: Are close-packed structures necessary for solid-state fusion?
- Keywords: cold fusion, palladium, titanium
- Message-ID: <4990@cs.Buffalo.EDU>
- Date: 1 Apr 89 09:31:34 GMT
- References: <1626@wpi.wpi.edu>
- Sender: news@cs.Buffalo.EDU
- Reply-To: lanthony@sunybcs.UUCP (Lawrence Anthony)
- Organization: SUNY/Buffalo Computer Science
- Lines: 21
- Posted: Sat Apr 1 04:31:34 1989
-
- In article <1626@wpi.wpi.edu> mchamp@wpi.wpi.edu (Marc J. Champagne) writes:
- >
- >1) lattice structure
- > -palladium has a type of cubic lattice structure at STP ; the
- > lattice is reportedly saturated with palladium ions during a 10
- > hour "charging time", after which fusion occurs via tunneling
- > -titanium has a stable hexagonal structure below 882 C ; it's
- > cubic lattic is only stable ABOVE 882 Celsius
- >
-
- Both the face-centered cubic (cubic close-packed) structure of Pd
- and the hexagonal close-packed structure of Ti are close-
- packed structures, even if the c/a ratio for the latter departs
- somewhat from the ideal. This close-packed structure seems to be a
- common property of all the putative fusion-supporting lattices
- mentioned thus far.
-
-
-
- bitnet: lanthony@sunybcs.bitnet
- internet: lanthony@cs.buffalo.edu
-
-
- Article 24 of sci.chem:
- Path: dasys1!cucard!rocky8!cmcl2!nrl-cmf!ukma!tut.cis.ohio-state.edu!bloom-beacon!husc6!lotto
- From: lotto@midas.harvard.edu (Gerald I. Lotto)
- Newsgroups: sci.chem,sci.physics
- Subject: Other metals for cold fusion system
- Message-ID: <LOTTO.89Mar31101842@midas.harvard.edu>
- Date: 31 Mar 89 15:18:42 GMT
- Sender: news@husc6.harvard.edu
- Organization: Harvard Chemistry Dept., Harvard University
- Lines: 24
- Xref: dasys1 sci.chem:24 sci.physics:4701
- Posted: Fri Mar 31 10:18:42 1989
-
- I have seen many references to Ti as an alternative to Pd in the
- cold fusion system that has received some attention :-) in these
- newsgroups lately. d-block metal H affinities seem to fall into
- two broad categories:
-
- 1) Little or none - generally true of metals not mentioned in the
- following paragraph(s).
-
- 2) Ti, Zr, Hf (IVa) and V, Nb, Ta (Va) form (exothermically) hydrides
- that are pretty stable. Ti and Zr in particular form materials that
- are commonly used as reducing agents in metallurgy. These tend to be
- nonstoichiometric hydrides in a 1:~1.5 M:H ratio.
-
- Pd is unique in how labile the "hydrides" that it forms are. Copper is
- also strange - but in a different way, not particularly useful in this
- context. If other metals are to be used for this process, I would
- think that Ru or Rh would be more likely candidates than Ti from a
- chemical standpoint.
-
- More info from:
-
- F. A. Lewis, The Palladium-Hydrogen System, Acad. Press, 1967
- --
- Gerald Lotto - Harvard Chemistry Dept.
-
-
- Article 36 of sci.chem:
- Path: dasys1!cucard!rocky8!cmcl2!lanl!hc!ames!pasteur!ucbvax!hplabs!hplabsz!dleigh
- From: dleigh@hplabsz.HPL.HP.COM (Darren Leigh)
- Newsgroups: sci.chem,sci.physics,rec.arts.sf-lovers
- Subject: Jack Williamson was right
- Summary: Now we've had it!
- Message-ID: <3172@hplabsz.HPL.HP.COM>
- Date: 4 Apr 89 00:55:46 GMT
- References: <LOTTO.89Mar31101842@midas.harvard.edu>
- Reply-To: dleigh@hplabs.UUCP (Darren Leigh)
- Followup-To: rec.arts.sf-lovers
- Organization: Open Fly Systems
- Lines: 24
- Xref: dasys1 sci.chem:36 sci.physics:4779 rec.arts.sf-lovers:16336
- Posted: Mon Apr 3 19:55:46 1989
-
- In article <LOTTO.89Mar31101842@midas.harvard.edu> lotto@midas.harvard.edu (Gerald I. Lotto) writes:
-
- >Pd is unique in how labile the "hydrides" that it forms are. Copper is
- >also strange - but in a different way, not particularly useful in this
- >context. If other metals are to be used for this process, I would
- >think that Ru or Rh would be more likely candidates than Ti from a
- >chemical standpoint.
-
- I bet they would be! Now I've got it all figured out. Palladium,
- Ruthenium, Rhodium . . . I can add two and two. Our friendly Utah
- researchers haven't discovered cold fusion, they've discovered
- rhodo-magnetism! Now we're really in trouble. The humanoids
- undoubtedly detected the reactions and are on their way at this very
- instant. The only decent weapon to use against them is a
- rhodo-magnetic monopole and where the hell are we going to get one of
- those?
-
- The only advice I can give you is DON'T BUY ANY ROBOTS! Especially
- not black ones with metal eyes. Don't even let them in your house.
-
- Cowering in terror,
- Darren Leigh
- Internet: dleigh@hplabs.hp.com
- UUCP: hplabs!dleigh
-
-
- Article 4763 of sci.physics:
- Path: dasys1!cucard!rocky8!cmcl2!lanl!hc!ames!lll-winken!uunet!mcvax!ukc!reading!minster!martin
- From: martin@minster.york.ac.uk
- Newsgroups: sci.physics
- Subject: Palladium, etc
- Message-ID: <607391696.27748@minster.york.ac.uk>
- Date: 31 Mar 89 23:54:56 GMT
- Reply-To: martin@minster.UUCP (martin)
- Organization: Department of Computer Science, University of York, England
- Lines: 28
- Posted: Fri Mar 31 18:54:56 1989
-
- I was just looking at a table of `Electronic configurations of the
- elements', (with particular interest in the entry for Pd - You can
- probably guess why!) and I noticed that Palladium is unique in that it
- has a completely full, `naked' d electron subshell. Ie it is a bit
- like an inert gas, except that they all have full p subshells - all
- other elements with full d subshells have electrons either in the
- corresponding f subshell, or in the s subshell of the next shell.
- In either case `outside' the d subshell. (Sorry that sounds convoluted,
- I hope it is clear enough!)
-
- Could someone who understands the implications of this tell me more?
- Is there a simple explaination as to why this happens? (Or is it
- `just life'!). Are there any interesting properties of Pd which
- result from this? Is there any possibility that this could have any
- bearing on the current speculation? If the report of similar results
- using Titanium are true then presumeably the answer to that is `no'.
-
- Martin
-
- usenet: ...!mcvax!ukc!minster!martin
- JANET: martin@uk.ac.york.minster
- surface:
- Martin C. Atkins
- Dept. of Computer Science
- University of York
- Heslington
- York YO1 5DD
- ENGLAND
-
-